Hemstitching attachment for sewing-machines



APPLICATION FILED NOV] 13, 1917.

Patented Dec. 20, 1921.

6 SHEETSSHEET 1- J. HICKEY.

HEMSTIT CHING ATTACHMENT FOR SEWING MACHINES.

APPLICATION FILED NOV=13 191T.

Patented Dec. 20, 1921.

6 SHEETS-SHEET 2.

' I. HICKEY.

HEMSTITCHING ATTACHMENT FOR SEWIN G MACHINES.

APPLICATION FILED NOV I3, I917- Patented Dec. 20; 1921.

6 SHEETSSHEET 3.

a 1/1, Allorzzey Jbck W. Mb WN RN J HICKEY. HEMSTITCHING AUACHMENT FOR SEWI'NG MACHINES.

APPLICATION FILED NOV=I3,19I7.

Patented Dec. 20, 1921.

IAOLIGQP 6 $HEETSSHEET 4- fzwezziol. a W

X lmwww EMQ J. HICKEY'.

HEMSTTTCHING ATTACHMENT FOR SEWI'NG MACHINES.

APPLICATION FILED NOV= 13. 19!?- Patented Dec. 20, 1921. 6 SHEETS-SHE?! 5- J. HICKEY.

HEMSTI-TCHl-NG ATTACHMENT FOR SEWING MACHINES.

APPLICATION FILED NOV= .13, I917.

Patented Dec. 20, 1921.

6 SHEETSSHEET 6.

fizz/mi umreo STATES JAMES HICKEY, 0F PORTLAND, OREGON.

HEMSTITCHING- ATTACHMENT FOR SEWING-MACHINES.

onica.

Specification of Letters Patent.

Patented Dec. 20, 1921.

Application filed November 13, 1917. Serial No. 205,464.

To all whom it may concern:

Be it known that I, JAMES HICKEY, a citizen of the United States, and a resident of the city of Portland, county of Mult-nomah, State of Oregon, have invented a certain new and useful Improvement in Hemstitching Attachments for Sewing-Machines, of which the following is a specification.

The object of my invention is to provide a simple attachment for the usual type of household sewing machine, by which the latter is adapted for doing hemstitching Work. Also so to arrange my attachment that it may be readily attached to the sewing machine, and as readily removed again when not wanted.

I attain my object by an attachment adapted for being supported on the presserbar of the sewing machine, so that it will be 'yieldingly'held to its work, and may be lifted from working contact With the cloth by the lifting of the presser-bar.

The construction of my device, its attachchine, and its action when so attached, are illustrated 111 the accompanying drawings, in which:

Figure I (Sheet 1) is a perspective view of my hemstitching attachment as a whole, showing the same as applied in practice to a sewin machine;

Fig. & (Sheet 1) shows the parts carried by one side of the frame of the group of mechanisms B of my device, looking at the same as in Fig. I, with the group of mechanisms A removed;

Fig. II (Sheet 2) is a top view of my device by itself on a larger scale; it is to be noted from this view that my invention comprises two cooperating groups of mechanism, desi ated A and B;

Fig. IIF lSheet 2) is an elevation of the parts carried by the inner side of the frame of the roup A;

Fig. IV (Sheet 3) shows a rear side or exterior elevation of group 'B;

Fig. IV (Sheet 6) shows details of parts of the mechanism illustrated in Fig. IV;

Fig. V (Sheet 3) is a partial plan section on the dotted line VV of Fig. IV;

Fig. VI (Sheet 4) shows a, partial front side or interior elevation of group B;

, Fig. VII (Sheet 4) is a fragmental plan or top view of group B- Fig. VIII (Sheet 5) shows a right-end View of my device as a whole, with reference to its position in Figs. I and II;

Fig. IX (Sheet 6) shows a projection in plan of the rim of the cam-Wheel included in my device, 7

Fig. X (Sheet 5) is a cross-section on the dotted line XX of Figs. IV and V (Sheet 3) v Fig. X (Sheet 5) is a cross-section on the dotted line X-X of Fig. IV (Sheet 3') Figs. X XI, XII, XII XIII andXIII (on'Sheet 5), Figs. XIV, XIV and XV (Sheet 6) and Fi s. XVI, XVII, XVIII, XIX and XX (Sheet 1) show details of construction fully described hereinafter, some of these figures being drawn in sec tion and others in diagrammatic form;

F i s. XXI and XXII (Sheet 4%) and Figs. XX I and XXIV (Sheet 3) illustrate d1agrammatically the cotiperative hemstitching action of the piercing-needle, or piercer, of my attachment, with the needle of the sew machine ment to the presser-bar of the sewing maig. XXV diagrammatically illustrates the hemstitching produced by my attachment;

Fig. XXVI illustrates how a cord may be fastened on the oods by the hemstitches made by m attachment; and

Fig. XX II shows a. detail of construction. I

The securing of my attachment to the sewing machine is provided for in the clamping head 37 (see Figs. I and XI, Sheets 1 and 5) of the frame of group A of my attachment, into which head are threaded screws 37 for clamping my attachment to the presser-bar 36 of the sewing machine. The work done by my attachment, with reference to one cycle .of action, is to pierce a hole in the goods and then somove the goods under the needle of the machine that the needle will make the stitches shown in Fig. XXV (Sheet 3). That is to'say, a-

piercer 26 carried by my attachment makes 100 a hole 50 in the goods, the needle 38 of the machine follows and makes a stitch in the same hole. My attachment then moves the goods sidewise, first in one and then in the opposite direction, during which movement 105 the needle of the sewin machine makes the stitches 51, 52 from an ,back to the hole 50. My attachment then operates to feed the goods forward, the needle makes a: stitch 53 and one cycle of action of my attachment 110 is completed, and in the' further work such cycle is repeated until the hemstitching is finished.

My attachment includes a vertically oscillable arm d (see Fig. I) made with a forked extremity, by which it is engaged with the set-screw of the needle-bar of the sewing machine; and throughsuch arm d the oscillations of the needle-bar of,the sewing machine are communicated for operating my attachment.

A bridge plate 39 must be used in connection with my attachment, so as to cover the feeding dog of the sewing machine. The bridge plate 39 is fastened to the base plate mg) of the sewing machine. The moving of the goods under the needle of the sewing machine is accomplished by a bifurcated feed-bar m, having teeth n on its under side, which bar is caused to bear down on the goods and to move the same sidewise and forward, as mentioned, in completing one cycle of action of my attachment. My tachment is then automatically lifted, by de vices provided in the same, so as to lift the feed-bar on off the goods; and while so lifted the feed bar is moved back to the point from which it was moved to feed the goods forward. Then my attachment is automatically lowered, so as to bring the feed-bar again into engagement with the goods, and the described cycle of action of my device is repeated. The tension of the usual spring of the presser bar 36 of the sewing machine is utilized to hold my attachment in operative contact with the goods.

With this outline of the operation of my attachment the details of its construction may be more readily described. As mentioned, my device comprises two cooperating groups of mechanism designated by B and A respectively, the parts comprised within the latter, group being carried by a frameplate hinged to the frame of group B, by a hinge 28, as more readily seen in Fig. I.

Describing firstthe details of group B: This comprises a frame consisting of a baseplate at, having a vertical web a, as shown in Fig. XI. The web a is provided with holes a of, in which are inserted the journal pins 6 and 0. (See Fig. X). On the pin 6' is journaled a cam-wheel 6 made with a shouldered hub 6 (compare Figs. IV and X) on which is rigidly secured a ratchet wheel f, and on the shoulder b is pivoted a vertically oscillable arm (2, having a forked ex-- tremity which is connected with the recip rocating needle-bar 38 of the sewing machine by the usual set-screw of such needle bar. On the arm d is pivoteda pawl 6 (see Figs. II- and IV) controlled by a spring 6' and engaging with the ratchet wheel f. Thus the motion of the needle bar of the sewing machine is transmitted through the arm 03 and progressively partially rotates at-v the ratchet wheel f, and therewith the cam wheel 6. The latter is held in the position into which it is so progressively moved by a compressed coil spring 6 (Fig. X).

The function of the cam wheel I) is to so operate my attachment as to feed the goods sidewise, and in so doing causes the needle to make the stiches 51, 52 illustrated in Fig. XXV.

The cam-wheel bi has a circumferential groove 6 formed as shown in the plan projection thereof in Fig. IX. To the under side of the base-plate a is pivoted by a headed screw Z, the feed-bar m, the extremity of which is forked so as to accommodate the passage of the needle 38 said forked extremities are provided with feed-dogs n. See Figs. IV, V and XI. The screw Z bears in the longitudinal slot Z of the base-plate a.

On the feed-bar m is mounted a pin 0 on which swivels a swivel-block 0. The swivel-block projects through the aperture a of the base-plate a, as more clearly shown in Figs. V and X said aperture being adapted to permit the swivel-block reciprocal and rotary motion therein. The swivelblock 0 is provided with a dove-tailed groove 0' on its upper face in which relatively slides a plate j, pivoted by a screw it fixed in the base-plate a. ()n the plate is journaled a cam-roller g which bears in the peripheral cam-groove b of the cam-wheel b. The plate 7' serves'as a guide for the swivel block 0 on the feed-plate.

From the plan projection of the cam groove 22* in Fig. IX the lateral movements imparted to the feed bar on by the revolution of the cam wheel I) may be traced; these movements being illustrated in Fig. V by full and broken lines; and the relative travel of the roller gin said peripheral groove 6 of the cam wheel is illustrated by g and g in Fig. IX.

The feed bar m is providedwith a lug 1 (see Figs. IV? and XII) to which is pivoted an arm a: by a screw y. The lug g projects through an aperture 1 of the base-- plate a; see Figs. V and VII ;-said aperture being adapted to permit the lug g lateral motion.'

On the journal pin cis rotatably mounted a cam plate 8 connected by a link g with the vertically oscillatable armd. See Figs. IV and XIV. On the pin 0 is further rotatably mounted a two-membered or duplex ratchet wheel at. The ratchet to has twelve teeth and the ratchet 4) has four teeth, as more clearly shown in Fig. XIV From the cam plate 8 projects a pin 1" on which is pivoted a pawl 25 controlled by a spring F, as shown in Figs. XIII and XIV, thefree end of which pawl has a laterally projecting toe t (see Figs. XIII and XIII adapted to en-.

ing of the cam plate 8 will cause an intermittent partial rotation of the duplex ratchet wheel u. The member 1) of the duplex ratchet wheel a has four lateral pins w, spaced equi-distant, for engaging with a lateral toe 9 on the free end of the arm a, pivoted to the lug if of the feed bar-m, as mentioned. See Fig. XII The pinfof the cam plate 8 has a flat face 1" (see Fig. XIV) and the free end of the arm a: has a notch r so that the arm as may engage with the pin 7 as shown. The dropping of the arm a: into engagement with the pin 1" of the cam plate 8 is therefore controlled by the rotation of the duplex ratchet wheel a, and can occur only once during each quarter revolution of the latter, for since the ratchet wheel a is given only a turn during each up-and-down movement of the arm (Z, it will take three of such movements to effect said engagement Then the movement of the cam plate 8 will impart to the feed bar m a longitudinal, forward movement, through the engagement of pin 1' with the end of notch m thus feeding the goods forward. In time with said lateral movement of the feed bar the needle of the sewing machine makes relatively the stitch 52 to the right from the hole 50 pierced by the piercer, and then the stitch 51 to the left, back to the hole. And, while the roller 9 of the feed bar m is traveling in a straight course ofthe peripheral groove of the cam wheel I), the arm 00 is actuated, as described, to move the feed arm forward, causing the needle then to make a stitch 53 to another hole 50 (referring to Fig. XXV), previously pierced at such point into the goods by the piercer 26 of my attachment; and then the cycle of actions of my attachment repeats itself.

The feed bar m is released from the goods between each cycle of action and moved longitudinally in the reverse or return direction, as pointed by the arrow at in Figs. VI and VII, and is then dropped back on the goods, by the tension of the presser'bar 36 of the sewing machine, for again advancing the goods, as described, by the following devices:

As shown in F ig.-XT, the vertical web a of the base plate, a, is provided with a bracket 2, in which is journaled a vertical shaft 2 provided at the lower end with an arm 2, and at its upper end with an arm 4, as shown in Fig. XVI. A stud 6 projects from the web a and thereon is pivoted an arm 5, which is provided with laterally projecting hinge knuckles 5 (see Fig. XVII) in which is hinged, by a pin 10, an arm 9, having a roller 9 at one end. A coil-spring 9 suitably supported between the arms 5' and 9, causes the extremity 9 of the arm 9 normally to bear against a stop 5 of the arm 5, and in this position of the arm 9 its roller bearing end is located to one side of the cam plate 8. The extremity 5 of the arm 5 bears in a recess 7 of a vertically movable lifting bar 7 (see detail of latter in Fig. XV) slidably supportedby screws 7 extending through a slot7 of said lifting bar and threaded into the head 37 of the web a of the base plate a. See Fig. IV. The lower end of the lifting bar is loosely connected by a screw 8 with a lever-arm 8, pivoted by a screw 8 to the underside of the base plate a, and the free end of such lever arm bears on the bridge-plate 39, secured by a screw 40 (Fig. 1) to plate mp of the sewing machine in such'wa-y as to cover the feed dog of the latter.

The feed-bar m has a stud pin 3 (see Figs. VII and XI), and while .moving in its for- .ward direction, for advancing the goods a step, the pin 3 will strike the lower arm 2 of the shaft 2' and rotate the latter into its position in full lines in Fig. VII; then the upper arm 4 of the shaft .2 bears upon the forward end of the arm 9 and so moves the latter as to bring its roller 9 over the cam plate 8. Compare Figs. II and'VII.

Assuming a stitch 53 into a hole 50 (Fig. XXV) to be the first stitch during the cy- I cle of actions of my attachment, the lateral stitch 51 to be the second, and the lateral stitch 52 to be the third, when the latter stitch is completed, and in time with the up movement of theneedle bar of the sewing machine, my attachment will be operated to move the feed-bar m forward, so as to ad vance the goods a step through the engagement of notch 00 and pin 1*, and in time with such movement of the feed-bar the roller bearing end of the arm 9 is positioned over the cam plate 8. Then the next downward movement of the needle bar, in making another stitch 53, to the newly pierced hole 50 in the goods, will so rock the cam plate 8 as to cause the arm 9, and therewith the arm 5, to be tilted as shown in Fig. VI, thereby depressing the lifting bar 7 and causing the lever arm 8 to bear on the bridge-plate 39. Now, since the frame of the group of mechanisms B is rigidly attached by the head 37 to the yielding presser bar 36 of the sewing machine, when the lever arm 8 bears down on the rigid bridge plate 39 it will lift my attachment sufficiently to clear the feed bar m from the goods, so that it may be moved back to its initial position.

To facilitate the rapid disengagement of &

the forward movement of the feed-bar m, which occurs just after stitch 52has been made, and during the rip-movement of the needle bar of the sewing machine, as mentioned, the arm 03 and the lug of the feedbar, and their connections, were positioned as shown in dotted outline in Fig. IV; the arm 00 being still engaged by the pin 1 of the cam plate 8. downward movement of said needle bar the arm d will reversely rock the cam plate 8 and slide its pin 1 under and lifting the arm, 90, the pin 1' then coming into contact with the lug 3/ of the feedebar, and moving the feed-bar reversely over the goods back to its initial position. The cam o and studs w are so arranged that the operation of the mechanism for raising the attachment by the lever arm 8 and of the mechanism for returning the feed-bar to its advanced position is simultaneous; the dished edge 8' of the cam plate 8 being so arrangedthat the attachment drops and the presser bar engages the work as soon as it. reaches its advanced position.

The described action of my attachment is complete in itself and causes the sewing machine to make the stitches 51,52, 53 shown in Fig. XXV, if no piercing of the goods with holes 50 is wanted.

The piercing of a hole in the goods, as at 50 in Fig. XXV, is performed by the group of mechanism A, which cooperates with the group of mechanism B, and is timed to act in advance of the making of the stitch 53 by the needle of the sewing machine, and after the goods have been advanced a step, as.

mentioned. The cotiperative actions of the needle 38 and the piercer 26 are diagrammatically illustrated in Figs. XXI and XXII, and resulting in the making of the stitch 51. Then the needle above the work relatively moves laterally from the piercer, as illustrated in Fig. XXIII, to, produce stitch 51, and then the needle and piercer are brought together again. as illustrated in Fig. XXIV by the relative movement of the goods back to the right, resulting in the making of the return stitch 52 into the previously pierced hole 50.

In order topermit the needle of the sewing machine to enter the hole 50 made by the piercer 26, the latter has a concaved longitudinal recess 26*, as shown in Figs. II and V. g

The devices for piercing the goods, as mentioned, comprised in the group of mechanism A, are constructed as follows: 12 is the supporting plate or frame, which is through the hereinafter described arrangement of a plate 13, adjustably connected by a hinge 28 to the angular portion of the web a of the frame of the group of mechanism B, see Figs. I and III. The plate 12 is made with Then, during the next.

III and VIII) in which the piercers 26, 27

are clamped by set-screws 24". The piercer-26 is ordinarily sufficient, the auxiliary piercer 27 being only used when it is desired to pierce first a small hole and then a larger one, as may be deemed preferable when working with certain kinds of goods. A reciprocable plate 29 is slidably supported on the plate 12by screws 19, threaded into the latter plate 12, and working in the slot 22 of the said reciprocable plate 29. The reciprocable plate 29 is made with an oblique portion 18 (see Fig. III) having a slot 22 and a transverse piece 23 and the piercer-head 24 has a roller 23 which bears in said slot. The reciprocable plate 29 is controlled by a spring 21 and normally is held bythe latter retracted, as shown in full outline in Fig. III. .l Vhen the reciprocable plate '29 is forcibly moved to the right, with reference to Fig. III, it will cause the lifting of the piercer-head 24. Such movement of the reciprocable plate 29 is effected through the stirrup 14, adjustably secured by screws 17 inserted through slots 17 of the stirrup 14 into the portion 29- of the reciprocable plate 29. The stirrup 14 is made of a piece provided with hinge knuckles. 14 to which is hinged the piece.l4, and a leaf-spring 14 is adaptedto hold the hinged piece 14 away from the plate 12, as illustrated in Fig. II.

- The extremity ofthe hinged stirrup-ment ber 14 is made with an eye 14f, for engaging with a pin 11 projecting from the cam plate 8 (see Fig. I) coaxially with the pin 7 on the opposite side of said cam plate. Said-pin 11 is indicated in Fig..III in dotted outline with respect to its extreme positions,

and the path of its motion is indicated in the same figure by the curved broken line 11 connecting said extreme positions. The swinging stirrup-member 14 is controlled by a hinged arm 35, pivoted at 35 in the web a (see Figs. If, VI and XXVII) provided at its lower extremity with a toe 35 and its upper end terminating in a dog 36. See Figs. I, IV and VI. A spring 60 controls the arm 35 so as to cause the dog 36 to ride on the notched periphery of memher 4; of the duplex ratchet wheel u, and to drop into the peripheral notches of said member 1) during the latters rotation.

When'the pivoted arm 35 is not in a notchof the member 4) of the duplex ratchet wheel. u, it will be positioned as shown by dot-and-dash line in Fig. VI, and its toe 35 will bear against the hinge-d member 14 of the stirrup '14 and hold such member out of engagement with the pin 11 of the cam plate .9; and when the arm 35 drops in a notch of the cam member 4) it will be p0.- sitioned as shown in full lines in Fig. VI,

with its toe below the hinged stirrup member 141, and the spring 14 will act to engage this member with said pin 11.

The function of the stirrup connection is to lift and depress the piercer 26 (or the piercers) in time with ever cycle of motions of my attachment, WhlCll cycle corresponds with three stitches of the sewing machine mentioned. Therefore the cooperating parts are so timed that the stirrup will become engaged with the pin 11 of the cam plate 8 once in each sequence of three movements of the latter.

An inclined trip-plate 34, (see Fig. I) aflixed on the web or frame portion a of the group B, is adapted to disengage the stirrup 14 from the pin 11 when the latter has almost traveled to the ,end of its course in the direction pulling the reciprocable bar 29 inward and causing the lifting of the piercer 26. In this way the stirrup 14 is suddenly released, the spring 21 then acting to project the reciprocable bar 29 outward, abruptly, and thereby causing the piercer 26 to descend and strike the cloth on the bridge plate 39 with sufficient force to go through and make the hole 50.

On the outer face of the plate 12 of the group A is mounted, vertically slidable, a latch-palate 33 provided. with a hook 33 adapted to be engaged with the head 20 of the screw 20 sliding in the groove 22 (see Fig. I) when the latch-plate 33 is depressed. In this way the reciprocable bar 29. may be latched in retracted position and locked in that position by tightening the thumb-screw 32. The lower end of the latch-plate 33 is made with a latch hook 31 adapted to engage with the slot 30 of the feed-bar m, as illustrated in Fig. VIII, so as to lock the group A in cooperative position with the group B. I

The .reciprocable bar 29 is locked in retracted position, and thereby the piercer in uplifted position, when the group of mechanisms A is to be swung outward from the group B. This is desirable to facilitate the threading ofthe needle, as evident from the inspection .of Fig. I. Group A mechanism is connected slidably to the feed-bar 712. by hook 31, so as to havelateral movement therewith swinging on hinge 28.

The screw 40 is inserted through the hole 40 of the bridge-plate (Fig. XVIII). 39 are holes for the needle 38 of the sewing machine and the iercer 26 of my attachment. 39 is a rein orcing leg supporting the middle of the bridge-plate, so as to prevent the bending thereof when the stress of lifting my attachment is imposed upon it, this leg of course being of a vertlcal dimension to avoid interfering with the normal movement usual feeding dog of the sewing machine.

A detail of the bridge-plate is shown in Figs. XVIII, XIX, and XX, which, in the order named, show; a top view and longitudinal and traansverse sections.

It will have .been noted that thepurpose I of the bridge plate 39 is also to provide a.

surface spaced from the feed dog of the sewing machine through which the piercer 26 iaiay strike in making the hole 50 in the goo s.

The arm at, as shown in Fig. XII may be made with an adjustable piece 00 carrying the tongue and clamped in place by a set screw 00*. This permits of adjustment to lengthen or shorten the stitches by varying the feed of the cloth.' In order to provide adjustment with reference to the varying distance between the presser bar and the needle-bar of different sewing machines, the plate 13 is slidably connected to plate 12 by means of screws 15 bearing in the slots 15, and the plate 13 is clamped in place on the plate 12 by the thumb-.screw15 bearing in the slot 16 This adjustment is also required when the stitching mechanism and piercer mechanism are connected, since these two mechanisms must be adjusted relatively to the distance 'as indicating the direction away from the operator at the front of the machine. 7,

I claim: p 1. An attachment of.

described adapted for being fastened to-the resser-bar of a sewing machine and comthe character deprising means, including a piercer, for making a .hole in the goods in which to receive the needle of the sewing machine, means for feeding the goods sidewise and forwardfrom the needle of the sewing machine, and such means adapted to be operatively connected with and operated through the medium of j the needle bar of the sewing machine. 2.- An attachment of the character described adapted for being fastened to the presser-bar of a sewing machine and comprising means, including a piercer, for making a hole in the goods in which to recelve the needle of the sewing machine, means for feeding the goods sidewise and forward from the needle of the sewing machine, such means adapted to beoperatively connected with and operated through themedium of the needle bar of the sewing machine, and devices adapted upon the completion of each cycle of action of the goods-feeding means to lift them from the goods and return said feeding means to their initial position.

3. In combination with a sewin machine including a presser-bar and a bridge-plate covering the feed-dog of the machine,an attachment secured to said presser-bar and comprising means, including a piercer, for making a hole in the goods in which to receive the needle of the sewing machine, means for feeding the goods sidewise and forward from the needle of the sewing machine, releasing means including a member bearing on said bridge-plate, thereby lifting the feeding means from the goods in time with each cycle of action of the feeding means, and said attachment being connected with and operated through the medium of the needle-bar of the sewing machine.

4. In combination with a sewing machine including a presser-bar and a bridge plate covering the feed-dog of the machine, an attachment secured to said presser-bar and comprising means, including a piercer, for making a hole in the goods in which to receive the needle of the sewing machine, means for feeding the goods sidewise and forward from the needle of the sewing machine, means for returning said feeding means to their initial position while disengaged from the goods, releasing means including a member bearing on said bridge plate, thereby lifting the ,feeding means from the goods in timevwith each cycle of action of the feeding means, and said attachment being connected with and operated through the medium of the needle bar of the sewing machine.

5. The combination with a sewing machine provided with a spring-controlled resserbar, of a bridgeplate covering t e feed mechanism of the sewing machine, and an attachment secured to the presser bar comprising means adapted .to feed the cloth relatively to the needle of the sewing machine, means, included in said attachment, comprising a member operated periodically to bear on said bridge-plate and lift said presser-bar and therewith the attachment, thereby disengaging said feeding means from the cloth, and motion transmitting connections between said operating means and the needle bar of the sewing machine.

6. In an attachment of the character described, the combination of a vertically oscillatable arm adapted for connection to the needle bar of a sewing machine, a, cam wheel and means for intermittently rotating it 0perated by said oscillating arm, said cam wheel provided with a peripheral cam groove, a feed bar, a roller mounted thereon hearing in said peripheral groove, a roadapted for being fastened to tatable member intermittently rotated in time with the rotation of said cam wheel, and means controlled by the intermittently rotated member periodically moving said feed bar forward.

7. The combination with a sewing machine, of a bridge-plate covering the cloth feeding mechanism of the latter, and a hemstitching attachment comprisingl a frame t e presser bar of the sewing machine, a vertically oscillatable arm adapted for connection to the needle bar of the sewing machine, a feed-bar, means operated by said oscillating arm adapted to impart to the feed-bar reciprocal lateral movements and a forward movement in sequence, means for lifting the feed-bar off the goods when its said se uence of movements has been completed, suc lifting means including a member bearing on said bridge-plate, and means for retracting the feed bar while lifted.

8. The combination with a sewing ma chine, of a bridge-plate covering the cloth feeding mechanism of the latter, and a hemstitching attachment comprising a frame adapted for being fastened to the pressei bar of the sewing machine, a vertically oscillatable arm adapted for connection to the needle bar of the sewing machine, a feed bar,

means operated by said oscillating arm adapted to impart to the feed-bar reciprocal lateral movements and a forward movement in sequence, means for lifting the feed-bar off the oods when itssaid sequence of movements as been completed, such lifting means including a member bearing on said bridge-plate, means for retracting the feedbar while lifted, and means for piercing a hole in the goods for the needle of the sewing machine in time with such sequence of movements of said feed-bar.

9. A hemstitching attachment comprising a frame adapted for being fastened to the resser-bar of a sewing machine, a vertically oscillating arm adapted for attachment to the needle bar of the sewing machine, a feed-bar, means operated by said oscillating arm adapted to impart to the feed bar reciprocal lateral movements and a forward movement in sequence, means for lifting the feed-bar off the goods when its said sequence of movements has been completed, means for retracting the feed-bar while lifted, and means for piercing a hole in the goods in time with such sequence of movements of said feed bar. a

10. A hemstitching attachment comprising a frame adapted for being fastened to the. presser-bar of a sewing machine, a vertically oscillatable arm adapted for attachment to the needle-bar of the sewing machine, a cam wheel, means operated by said oscillating arm adapted to intermit tently rotate the cam wheel, a feed-bar connected with said cam wheel being thereby given reciprocal lateral movements, means for moving the feed-bar forward during the intermittent rest of said cam Wheel, means for lifting said attachment after each cycle of said movements of the feed-bar thereby disengaging the latter from the goods, and means for retracting the feed bar while said attachment is lifted.

11. A hemstitching attachment comprising a frame adapted for being fastened to the presser-bar of a sewing machine, a vertically oscillatable arm adapted for attachment t the needle-bar of the sewing machine, a cam wheel, means operated by said oscillating arm adapted to intermittently rotate the cam wheel, a feed bar connected with said cam wheel being thereby given reciprocal lateral movements, means for moving the feed-bar forward during the intermittent rest of said cam wheel, means for lifting said attachment after each cycle of said movements of the feed-bar thereby disengaging the latter from the goods, means for retracting the feed-bar while lifted, and means for piercing a'l'iole in the goods for receiving the needle of the sewing machine.

12. A 'hemstitching attachment comprising a frame adapted for being fastened to the presser-bar of a sewing machine, a vertically oscillatable arm adapted for attachment to the needle-bar of the sewing machine, a cam wheel, means operated by said oscillating arm adapted to intermittently rotate the cam wheel, a feed-bar connected with said cam wheel being thereby given reciprocal lateral movements, means for moving the feed-bar forward during the intermittent rest of said cam wheel, means for lifting the feed-bar relatively in time with each sequence of its movements, means for retracting the feed-bar while lifted, a vertically reciprocable piercer, a spring adapted normally to project the piercer, means for retracing the piercer, such means timed with said sequence of movements of the feed-bar, and means, also timed with said sequence, for disengaging said piercer from its retracting means.

13. In an attachment .of the character described, the combination with means for feeding the goods relatively to the needle of a sewing machine, of a vertically reciprocable piercer, a spring adapted normally to project the piercer downward, means cooperating with the goods-feeding means for,

retracting the piercer periodically, and

- means timed with the cycle of action of said goods-feeding means for disengaging said piercer from its retracting means.

14. A hemstitching attachment comprising a frame adapted for being fastened to the pressure-bar of a sewing machine, a

vertically oscillating arm adapted for attachment to the needle-bar of the sewingmachine, a feed-bar, means operated by said oscillating arm adapted to impart to the feed-bar reciprocal lateral movements and a forward movement in sequence, means for lifting the feed-bar off the goods when its said sequence of movements has been completed, and means for retracting the feedbar while lifted.

15. In an attachment of the character described, the combination with means for feeding the goods relatively to the needle of a sewing machine, of a vertically reciprocable piercer, a spring adapted normally to project the piercer downward, means cooperating with the goods-feeding means for retracting the piercer periodically, means timed with the cycle of action of said goodsfeeding means for disengaging said piercer from its retracting means, and said piercer being also adapted for being retracted manually.

16. In an attachment of the character described, the combination with means for feeding the goods relatively to the needle of a sewing machine, of a vertically reciprocable piercer, a spring adapted normally to project the piercer downward, means cooperating with the goods-feeding means for retracting the piercer periodically, means timed with the cycle of action of said goodsfeeding means for disengaging said piercer from its retracting means, said piercer being also adapted for being retracted manually, and means for locking the piercer in position when retracted.

17. The combination with a sewing machine including a needle, of a bridge plate secured over the feed dog of the former and spaced therefrom, and cloth piercing mechanism carried by the presser-bar of the sewing machine and operated by the sewing machine having a piercer striking through said plate in making a hole in the cloth.

18. In an attachment of the character described, a cloth-feeding bar, means for progressively moving the same in sequence forward and sidewise, such means adapted to be connected to and operated by the needle bar of the sewing machine, and means carried by said cloth-feeding bar for holding a cord in position to be fastened on the cloth by the stitches made thereon.

19. In an attachment of the character described, the combination of means for piercing a hole in the goods in which to receive the needle of the sewing machine, means operating to feed the goods sidewise and back and then forward, and thereby causing the needle to make a stitch laterally from and back into said hole made in said goods and then from the said hole to the succeeding hole made by said piercing means.

20. In an attachment of the character described, the combination of means for piercing a hole in the goods in which to receive the needle of the sewing machine, means operating to feed the goods sidewise and back and then forward, thereby causing the needle to make a stitch laterally from andbaek into said hole made in said goods and then from the saidholeto the succeeding hole made by said piercingmeans, means for lifting the feeding'means off the goods w after its said movements have'been .completed, and means for returning the feeding means to their initial position Whilelifted JAMES, Hickey.

ofi the goods. 

